x470 Taichi bios 1.60

J Z wrote: Animoski wrote: With PBO enabled and a couple of tweaks I was getting ~1890-1915 in Cinebench before 2.00 - the same tweaking w/ PBO now consistently nets me ~1850-~1870. Before 2.00, my CPU would turbo up to 4.5-4.7Ghz inside of 3DMark (obviously certain cores/threads only) - now the max seems to be 4.35Ghz. Overall with PBO, multithreading performance has gone down as WELL as single-threaded. I've tried many, many, settings in BIOS, power settings in Windows, making sure background environment is the same, etc. However, simply locking my CPU down to 4.2Ghz nets 1950 in CB. Also, now I am actually full on STABLE at 4.3Ghz. It seems like there was a lot of under the hood tweaks with how power gets delivered to the CPU. RAM voltage seems closer to target now too. Overall good, but I kind of miss my PBO lol Hi, If PBO is enabled and you want to get the best CPU performance, then the CPU Offset Voltage should be set to -0.1V. So it was with the BIOS version before ;)

Offset -0.1 *used* to be extremely stable, and right before 1.62 came out, my PC basically wouldn't boot anymore. Just one positive click makes it stable again, so I did two "+"s

Animoski wrote: With PBO enabled and a couple of tweaks I was getting ~1890-1915 in Cinebench before 2.00 - the same tweaking w/ PBO now consistently nets me ~1850-~1870. Before 2.00, my CPU would turbo up to 4.5-4.7Ghz inside of 3DMark (obviously certain cores/threads only) - now the max seems to be 4.35Ghz. Overall with PBO, multithreading performance has gone down as WELL as single-threaded. I've tried many, many, settings in BIOS, power settings in Windows, making sure background environment is the same, etc. However, simply locking my CPU down to 4.2Ghz nets 1950 in CB. Also, now I am actually full on STABLE at 4.3Ghz. It seems like there was a lot of under the hood tweaks with how power gets delivered to the CPU. RAM voltage seems closer to target now too. Overall good, but I kind of miss my PBO lol

Hi,
If PBO is enabled and you want to get the best CPU performance, then the CPU Offset Voltage should be set to -0.1V.
So it was with the BIOS version before ;)

gizmic wrote: finally did 3466 and this is without tweaking anything hahaha loaded corsair mem preset and gave lots of voltage. But i'm back to 3333@14 no difference in CB still peaks at 4.3 XFR

3466Mhz and 3600Mhz have been very achievable on my G.Skill Flare X RAM kit and it's not even on the QVL list (made for gen1 zen). Have you tried the Ryzen DRAM calculator? I'd leave any "ohm" setting on auto.

With PBO enabled and a couple of tweaks I was getting ~1890-1915 in Cinebench before 2.00 - the same tweaking w/ PBO now consistently nets me ~1850-~1870.

Before 2.00, my CPU would turbo up to 4.5-4.7Ghz inside of 3DMark (obviously certain cores/threads only) - now the max seems to be 4.35Ghz. Overall with PBO, multithreading performance has gone down as WELL as single-threaded. I've tried many, many, settings in BIOS, power settings in Windows, making sure background environment is the same, etc.

However, simply locking my CPU down to 4.2Ghz nets 1950 in CB. Also, now I am actually full on STABLE at 4.3Ghz. It seems like there was a lot of under the hood tweaks with how power gets delivered to the CPU. RAM voltage seems closer to target now too. Overall good, but I kind of miss my PBO lol

Just going back to the 3400Mhz RAM OC w/ timings that i've been using, as well as PBO i'm noticing a consistent significant cut with CPU performance simply from quick testing with Cinebench and 3DMark. Can anyone else confirm lower overall performance?